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Finding the Fourth Proportional to 140,961.80, 211,452.30 and 44,891.40

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Solution

The fourth proportional to 140,961.80, 211,452.30 and 44,891.40 is: 67,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,961.80 : 211,452.30 = 44,891.40 : x
  2. Step 2: Convert to fraction form
    140,961.80/211,452.30 = 44,891.40/x
  3. Step 3: Cross multiply
    140,961.80x = 211,452.30 × 44,891.40
  4. Step 4: Simplify right side
    140,961.80x = 9,492,389,780.22
  5. Step 5: Solve for x
    x = 9,492,389,780.22/140,961.80
  6. Step 6: Final answer
    x = 67,340.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.